VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/asn1/asn1-ut-time.cpp@ 83743

Last change on this file since 83743 was 82968, checked in by vboxsync, 5 years ago

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1/* $Id: asn1-ut-time.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * IPRT - ASN.1, UTC TIME and GENERALIZED TIME Types.
4 */
5
6/*
7 * Copyright (C) 2006-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include "internal/iprt.h"
32#include <iprt/asn1.h>
33
34#include <iprt/ctype.h>
35#include <iprt/err.h>
36#include <iprt/string.h>
37#include <iprt/uni.h>
38
39#include <iprt/formats/asn1.h>
40
41
42/*********************************************************************************************************************************
43* Global Variables *
44*********************************************************************************************************************************/
45/** The UTC TIME encoding of the IPRT epoch time. */
46static const char g_szEpochUtc[] = "700101000000Z";
47/** The GENERALIZED TIME encoding of the IPRT epoch time. */
48static const char g_szEpochGeneralized[] = "19700101000000Z";
49
50
51/*
52 * ASN.1 TIME - Special Methods.
53 */
54
55RTDECL(int) RTAsn1Time_InitEx(PRTASN1TIME pThis, uint32_t uTag, PCRTASN1ALLOCATORVTABLE pAllocator)
56{
57 RT_NOREF_PV(pAllocator);
58 AssertReturn(uTag == ASN1_TAG_UTC_TIME || uTag == ASN1_TAG_GENERALIZED_TIME, VERR_INVALID_PARAMETER);
59 RTAsn1Core_InitEx(&pThis->Asn1Core,
60 uTag,
61 ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
62 &g_RTAsn1Time_Vtable,
63 RTASN1CORE_F_PRESENT | RTASN1CORE_F_PRIMITE_TAG_STRUCT);
64 if (uTag == ASN1_TAG_UTC_TIME)
65 {
66 pThis->Asn1Core.cb = sizeof(g_szEpochUtc) - 1;
67 pThis->Asn1Core.uData.pv = &g_szEpochUtc[0];
68 }
69 else
70 {
71 pThis->Asn1Core.cb = sizeof(g_szEpochGeneralized) - 1;
72 pThis->Asn1Core.uData.pv = &g_szEpochGeneralized[0];
73 }
74 return VINF_SUCCESS;
75}
76
77
78RTDECL(int) RTAsn1Time_CompareWithTimeSpec(PCRTASN1TIME pLeft, PCRTTIMESPEC pTsRight)
79{
80 int iDiff = RTAsn1Time_IsPresent(pLeft) ? 0 : -1;
81 if (!iDiff)
82 {
83 RTTIME RightTime;
84 iDiff = RTTimeCompare(&pLeft->Time, RTTimeExplode(&RightTime, pTsRight));
85 }
86
87 return iDiff;
88}
89
90
91/*
92 * ASN.1 TIME - Standard Methods.
93 */
94
95RT_DECL_DATA_CONST(RTASN1COREVTABLE const) g_RTAsn1Time_Vtable =
96{
97 "RTAsn1Time",
98 sizeof(RTASN1TIME),
99 UINT8_MAX,
100 ASN1_TAGCLASS_UNIVERSAL | ASN1_TAGFLAG_PRIMITIVE,
101 0,
102 (PFNRTASN1COREVTDTOR)RTAsn1Time_Delete,
103 NULL,
104 (PFNRTASN1COREVTCLONE)RTAsn1Time_Clone,
105 (PFNRTASN1COREVTCOMPARE)RTAsn1Time_Compare,
106 (PFNRTASN1COREVTCHECKSANITY)RTAsn1Time_CheckSanity,
107 NULL,
108 NULL
109};
110
111
112RTDECL(int) RTAsn1Time_Init(PRTASN1TIME pThis, PCRTASN1ALLOCATORVTABLE pAllocator)
113{
114 /* Using UTC TIME since epoch would be encoded using UTC TIME following
115 X.509 Validity / Whatever time tag guidelines. */
116 return RTAsn1Time_InitEx(pThis, ASN1_TAG_UTC_TIME, pAllocator);
117}
118
119
120RTDECL(int) RTAsn1Time_Clone(PRTASN1TIME pThis, PCRTASN1TIME pSrc, PCRTASN1ALLOCATORVTABLE pAllocator)
121{
122 AssertPtr(pSrc); AssertPtr(pThis); AssertPtr(pAllocator);
123 RT_ZERO(*pThis);
124 if (RTAsn1Time_IsPresent(pSrc))
125 {
126 AssertReturn(pSrc->Asn1Core.pOps == &g_RTAsn1Time_Vtable, VERR_INTERNAL_ERROR_3);
127
128 int rc = RTAsn1Core_CloneContent(&pThis->Asn1Core, &pSrc->Asn1Core, pAllocator);
129 if (RT_SUCCESS(rc))
130 {
131 pThis->Time = pSrc->Time;
132 return VINF_SUCCESS;
133 }
134 return rc;
135 }
136 return VINF_SUCCESS;
137}
138
139
140RTDECL(void) RTAsn1Time_Delete(PRTASN1TIME pThis)
141{
142 if ( pThis
143 && RTAsn1Time_IsPresent(pThis))
144 {
145 Assert(pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable);
146
147 RTAsn1ContentFree(&pThis->Asn1Core);
148 RT_ZERO(*pThis);
149 }
150}
151
152
153RTDECL(int) RTAsn1Time_Enum(PRTASN1TIME pThis, PFNRTASN1ENUMCALLBACK pfnCallback, uint32_t uDepth, void *pvUser)
154{
155 RT_NOREF_PV(pThis); RT_NOREF_PV(pfnCallback); RT_NOREF_PV(uDepth); RT_NOREF_PV(pvUser);
156 Assert(pThis && (!RTAsn1Time_IsPresent(pThis) || pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable));
157
158 /* No children to enumerate. */
159 return VINF_SUCCESS;
160}
161
162
163RTDECL(int) RTAsn1Time_Compare(PCRTASN1TIME pLeft, PCRTASN1TIME pRight)
164{
165 Assert(pLeft && (!RTAsn1Time_IsPresent(pLeft) || pLeft->Asn1Core.pOps == &g_RTAsn1Time_Vtable));
166 Assert(pRight && (!RTAsn1Time_IsPresent(pRight) || pRight->Asn1Core.pOps == &g_RTAsn1Time_Vtable));
167
168 int iDiff;
169 if (RTAsn1Time_IsPresent(pLeft))
170 {
171 if (RTAsn1Time_IsPresent(pRight))
172 iDiff = RTTimeCompare(&pLeft->Time, &pRight->Time);
173 else
174 iDiff = -1;
175 }
176 else
177 iDiff = 0 - (int)RTAsn1Time_IsPresent(pRight);
178 return iDiff;
179}
180
181
182RTDECL(int) RTAsn1Time_CheckSanity(PCRTASN1TIME pThis, uint32_t fFlags, PRTERRINFO pErrInfo, const char *pszErrorTag)
183{
184 RT_NOREF_PV(fFlags);
185 if (RT_UNLIKELY(!RTAsn1Time_IsPresent(pThis)))
186 return RTErrInfoSetF(pErrInfo, VERR_ASN1_NOT_PRESENT, "%s: Missing (TIME).", pszErrorTag);
187 return VINF_SUCCESS;
188}
189
190
191/*
192 * Generate code for the tag specific methods.
193 * Note! This is very similar to what we're doing in asn1-ut-string.cpp.
194 */
195#define RTASN1TIME_IMPL(a_uTag, a_szTag, a_Api) \
196 \
197 RTDECL(int) RT_CONCAT(a_Api,_Init)(PRTASN1TIME pThis, PCRTASN1ALLOCATORVTABLE pAllocator) \
198 { \
199 return RTAsn1Time_InitEx(pThis, a_uTag, pAllocator); \
200 } \
201 \
202 RTDECL(int) RT_CONCAT(a_Api,_Clone)(PRTASN1TIME pThis, PCRTASN1TIME pSrc, PCRTASN1ALLOCATORVTABLE pAllocator) \
203 { \
204 AssertReturn(RTASN1CORE_GET_TAG(&pSrc->Asn1Core) == a_uTag || !RTAsn1Time_IsPresent(pSrc), \
205 VERR_ASN1_TIME_TAG_MISMATCH); \
206 return RTAsn1Time_Clone(pThis, pSrc, pAllocator); \
207 } \
208 \
209 RTDECL(void) RT_CONCAT(a_Api,_Delete)(PRTASN1TIME pThis) \
210 { \
211 Assert( !pThis \
212 || !RTAsn1Time_IsPresent(pThis) \
213 || ( pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable \
214 && RTASN1CORE_GET_TAG(&pThis->Asn1Core) == a_uTag) ); \
215 RTAsn1Time_Delete(pThis); \
216 } \
217 \
218 RTDECL(int) RT_CONCAT(a_Api,_Enum)(PRTASN1TIME pThis, PFNRTASN1ENUMCALLBACK pfnCallback, uint32_t uDepth, void *pvUser) \
219 { \
220 RT_NOREF_PV(pThis); RT_NOREF_PV(pfnCallback); RT_NOREF_PV(uDepth); RT_NOREF_PV(pvUser); \
221 Assert( pThis \
222 && ( !RTAsn1Time_IsPresent(pThis) \
223 || ( pThis->Asn1Core.pOps == &g_RTAsn1Time_Vtable \
224 && RTASN1CORE_GET_TAG(&pThis->Asn1Core) == a_uTag) ) ); \
225 /* No children to enumerate. */ \
226 return VINF_SUCCESS; \
227 } \
228 \
229 RTDECL(int) RT_CONCAT(a_Api,_Compare)(PCRTASN1TIME pLeft, PCRTASN1TIME pRight) \
230 { \
231 int iDiff = RTAsn1Time_Compare(pLeft, pRight); \
232 if (!iDiff && RTAsn1Time_IsPresent(pLeft)) \
233 { \
234 if (RTASN1CORE_GET_TAG(&pLeft->Asn1Core) == RTASN1CORE_GET_TAG(&pRight->Asn1Core)) \
235 { \
236 if (RTASN1CORE_GET_TAG(&pLeft->Asn1Core) != a_uTag) \
237 iDiff = RTASN1CORE_GET_TAG(&pLeft->Asn1Core) < a_uTag ? -1 : 1; \
238 } \
239 else \
240 iDiff = RTASN1CORE_GET_TAG(&pLeft->Asn1Core) < RTASN1CORE_GET_TAG(&pRight->Asn1Core) ? -1 : 1; \
241 } \
242 return iDiff; \
243 } \
244 \
245 RTDECL(int) RT_CONCAT(a_Api,_CheckSanity)(PCRTASN1TIME pThis, uint32_t fFlags, \
246 PRTERRINFO pErrInfo, const char *pszErrorTag) \
247 { \
248 if (RTASN1CORE_GET_TAG(&pThis->Asn1Core) != a_uTag && RTAsn1Time_IsPresent(pThis)) \
249 return RTErrInfoSetF(pErrInfo, VERR_ASN1_TIME_TAG_MISMATCH, "%s: uTag=%#x, expected %#x (%s)", \
250 pszErrorTag, RTASN1CORE_GET_TAG(&pThis->Asn1Core), a_uTag, a_szTag); \
251 return RTAsn1Time_CheckSanity(pThis, fFlags, pErrInfo, pszErrorTag); \
252 }
253
254#include "asn1-ut-time-template2.h"
255
256
257/*
258 * Generate code for the associated collection types.
259 */
260#define RTASN1TMPL_TEMPLATE_FILE "../common/asn1/asn1-ut-time-template.h"
261#include <iprt/asn1-generator-internal-header.h>
262#include <iprt/asn1-generator-core.h>
263#include <iprt/asn1-generator-init.h>
264#include <iprt/asn1-generator-sanity.h>
265
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